Token Tools
Debug and verify JWT tokens with browser-only workflows for signature checks, claim inspection, and auth troubleshooting.
Token Tools
3 tools
JWT Builder
Construct a JWT token from header and payload JSON with a signing secret — supports HS256, RS256, ES256, and more. Free online JWT builder.
JWT Debugger & Signature Verifier
Decode JWT claims and verify HS/RS/ES signatures in-browser with shared-secret and public-key workflows - Free online JWT debugger
TOTP/2FA Authenticator & Token Generator
Generate RFC6238 TOTP codes from Base32 secrets or otpauth URIs with algorithm and period controls - Free online TOTP generator